TY - GEN
T1 - Self-sensing property of cementitious nanocomposites hybrid with nanophase carbon nanotube and carbon black
AU - Luo, Jianlin
AU - Duan, Zhongdong
AU - Zhao, Tiejun
AU - Li, Qiuyi
PY - 2011
Y1 - 2011
N2 - Cementitious composite filled with only 0.1 wt% multi-walled carbon nanotube (MWCNT) (MNTCC), or hybrid with 0.1 wt% MWCNT and 0.5 wt% nanophase carbon black (NCB) (NB/MNTCC), were prepared employing surfactant ultrasonic dispersion and subsequently high-speed mixing process. The electrical resistivities (ρ), compressive stresses (σ), and longitudinal strains (ε1) of these cured nanocomposites under cyclic loading (10 times) were simultaneously collected, to investigate their piezoresistivty properties. Results revealed that, hybrid of NCB is very effective for enhancement on the stress/strain sensitivity of NB/MNTCC (the strain sensitivity up to 107, much higher than that of MNTCC 67), but there is almost no improvement on the self-sensing repeatability and variation stability of the corresponding nanocomposite.
AB - Cementitious composite filled with only 0.1 wt% multi-walled carbon nanotube (MWCNT) (MNTCC), or hybrid with 0.1 wt% MWCNT and 0.5 wt% nanophase carbon black (NCB) (NB/MNTCC), were prepared employing surfactant ultrasonic dispersion and subsequently high-speed mixing process. The electrical resistivities (ρ), compressive stresses (σ), and longitudinal strains (ε1) of these cured nanocomposites under cyclic loading (10 times) were simultaneously collected, to investigate their piezoresistivty properties. Results revealed that, hybrid of NCB is very effective for enhancement on the stress/strain sensitivity of NB/MNTCC (the strain sensitivity up to 107, much higher than that of MNTCC 67), but there is almost no improvement on the self-sensing repeatability and variation stability of the corresponding nanocomposite.
KW - Carbon nanotube
KW - Hybrid effect
KW - Nanophase carbon black
KW - Self-sensing property
KW - Smart cement-based material
UR - https://www.scopus.com/pages/publications/78650723883
U2 - 10.4028/www.scientific.net/AMR.143-144.644
DO - 10.4028/www.scientific.net/AMR.143-144.644
M3 - 会议稿件
AN - SCOPUS:78650723883
SN - 9780878492237
T3 - Advanced Materials Research
SP - 644
EP - 647
BT - Smart Materials and Intelligent Systems
T2 - International Conference on Smart Materials and Intelligent Systems 2010, SMIS 2010
Y2 - 17 December 2010 through 20 December 2010
ER -